JPS6433269A - Production of porous hollow yarn membrane - Google Patents

Production of porous hollow yarn membrane

Info

Publication number
JPS6433269A
JPS6433269A JP18427587A JP18427587A JPS6433269A JP S6433269 A JPS6433269 A JP S6433269A JP 18427587 A JP18427587 A JP 18427587A JP 18427587 A JP18427587 A JP 18427587A JP S6433269 A JPS6433269 A JP S6433269A
Authority
JP
Japan
Prior art keywords
polypropylene
filler
hollow yarn
solidifying liquid
porous hollow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18427587A
Other languages
Japanese (ja)
Other versions
JPH0521617B2 (en
Inventor
Kazuaki Takahara
Kosuke Kido
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terumo Corp
Original Assignee
Terumo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terumo Corp filed Critical Terumo Corp
Priority to JP18427587A priority Critical patent/JPS6433269A/en
Publication of JPS6433269A publication Critical patent/JPS6433269A/en
Publication of JPH0521617B2 publication Critical patent/JPH0521617B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: To produce a porous hollow yarn membrane excellent in membrane characteristics by kneading polypropylene with an organic filler and a crystal nucleating agent good in dispersibility at the time of melting the polypropylene, melt spinning the resultant kneaded mixture into the shape of a hollow yarn, then bringing the melt spun yarn into contact with a cooling solidifying liquid having a specified specific heat capacity and subsequently carrying out an extracting treatment of the filler and the cooling solidifying liquid. CONSTITUTION: Polypropylene and an organic filler and a crystal nucleating agent uniformly dispersible in a molten state of the polypropylene are kneaded and then melt spun with an annular spinneret. The discharged material is then brought into contact with polyethylene glycol having 0.3-0.7 cal/g specific heat capacity without compatibility with the organic filler, cooled and solidified. The resultant material is subsequently treated with an azeotropic mixture of 1,2,2-trichloro-1,2,2-trifluoroethane with ethanol or acetone dissolving the filler and the cooling solidifying liquid without dissolving the polypropylene to extract and remove the filler and the cooling solidifying liquid. Thereby, a porous hollow yarn membrane excellent in membrane characteristics is obtained.
JP18427587A 1987-07-23 1987-07-23 Production of porous hollow yarn membrane Granted JPS6433269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18427587A JPS6433269A (en) 1987-07-23 1987-07-23 Production of porous hollow yarn membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18427587A JPS6433269A (en) 1987-07-23 1987-07-23 Production of porous hollow yarn membrane

Publications (2)

Publication Number Publication Date
JPS6433269A true JPS6433269A (en) 1989-02-03
JPH0521617B2 JPH0521617B2 (en) 1993-03-25

Family

ID=16150468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18427587A Granted JPS6433269A (en) 1987-07-23 1987-07-23 Production of porous hollow yarn membrane

Country Status (1)

Country Link
JP (1) JPS6433269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103007776A (en) * 2011-09-22 2013-04-03 中国石油化工股份有限公司 Structure control method of outer surface of polypropylene separation membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103007776A (en) * 2011-09-22 2013-04-03 中国石油化工股份有限公司 Structure control method of outer surface of polypropylene separation membrane
CN103007776B (en) * 2011-09-22 2015-06-17 中国石油化工股份有限公司 Structure control method of outer surface of polypropylene separation membrane

Also Published As

Publication number Publication date
JPH0521617B2 (en) 1993-03-25

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